155774232610140 has 96 divisors (see below), whose sum is σ = 461924681218560. Its totient is φ = 39140676723456.

The previous prime is 155774232610109. The next prime is 155774232610189. The reversal of 155774232610140 is 41016232477551.

It is a happy number.

It is a super-2 number, since 2×155774232610140² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 155774232610140.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 842294695 + ... + 842479614.

It is an arithmetic number, because the mean of its divisors is an integer number (4811715429360).

Almost surely, 2^{155774232610140} is an apocalyptic number.

155774232610140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155774232610140 is an abundant number, since it is smaller than the sum of its proper divisors (306150448608420).

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

155774232610140 is a wasteful number, since it uses less digits than its factorization.

155774232610140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684774411 (or 1684774409 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 48.

The spelling of 155774232610140 in words is "one hundred fifty-five trillion, seven hundred seventy-four billion, two hundred thirty-two million, six hundred ten thousand, one hundred forty".