155464535988 has 36 divisors (see below), whose sum is σ = 393170476608. Its totient is φ = 51796367760.

The previous prime is 155464535983. The next prime is 155464535999. The reversal of 155464535988 is 889535464551.

155464535988 is a `hidden beast` number, since 1 + 5 + 5 + 4 + 6 + 4 + 535 + 98 + 8 = 666.

155464535988 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×155464535988² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155464535983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 972378 + ... + 1120913.

It is an arithmetic number, because the mean of its divisors is an integer number (10921402128).

Almost surely, 2^155464535988 is an apocalyptic number.

155464535988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

155464535988 is an abundant number, since it is smaller than the sum of its proper divisors (237705940620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155464535988 is a wasteful number, since it uses less digits than its factorization.

155464535988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095364 (or 2095359 counting only the distinct ones).

The product of its digits is 103680000, while the sum is 63.

The spelling of 155464535988 in words is "one hundred fifty-five billion, four hundred sixty-four million, five hundred thirty-five thousand, nine hundred eighty-eight".