155038538688 has 56 divisors (see below), whose sum is σ = 447497606400. Its totient is φ = 46981374720.

The previous prime is 155038538687. The next prime is 155038538689. The reversal of 155038538688 is 886835830551.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (155038538687) and next prime (155038538689).

It is a super-2 number, since 2×155038538688² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155038538687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36702088 + ... + 36706311.

Almost surely, 2^155038538688 is an apocalyptic number.

It is an amenable number.

155038538688 is an abundant number, since it is smaller than the sum of its proper divisors (292459067712).

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

155038538688 is a wasteful number, since it uses less digits than its factorization.

155038538688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73408425 (or 73408415 counting only the distinct ones).

The product of its (nonzero) digits is 27648000, while the sum is 60.

The spelling of 155038538688 in words is "one hundred fifty-five billion, thirty-eight million, five hundred thirty-eight thousand, six hundred eighty-eight".