155168219136 has 112 divisors (see below), whose sum is σ = 472865281344. Its totient is φ = 44333727744.

The previous prime is 155168219111. The next prime is 155168219147. The reversal of 155168219136 is 631912861551.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278955 + ... + 623018.

Almost surely, 2^155168219136 is an apocalyptic number.

155168219136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155168219136 is an abundant number, since it is smaller than the sum of its proper divisors (317697062208).

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

155168219136 is an frugal number, since it uses more digits than its factorization.

155168219136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902009 (or 901985 counting only the distinct ones).

The product of its digits is 388800, while the sum is 48.

The spelling of 155168219136 in words is "one hundred fifty-five billion, one hundred sixty-eight million, two hundred nineteen thousand, one hundred thirty-six".