155536878740 has 24 divisors (see below), whose sum is σ = 328631301600. Its totient is φ = 61833064608.

The previous prime is 155536878719. The next prime is 155536878767. The reversal of 155536878740 is 47878635551.

It is a self number, because there is not a number n which added to its sum of digits gives 155536878740.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 23852090 + ... + 23858609.

It is an arithmetic number, because the mean of its divisors is an integer number (13692970900).

Almost surely, 2^155536878740 is an apocalyptic number.

155536878740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155536878740 is an abundant number, since it is smaller than the sum of its proper divisors (173094422860).

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

155536878740 is a wasteful number, since it uses less digits than its factorization.

155536878740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47710871 (or 47710869 counting only the distinct ones).

The product of its (nonzero) digits is 28224000, while the sum is 59.

The spelling of 155536878740 in words is "one hundred fifty-five billion, five hundred thirty-six million, eight hundred seventy-eight thousand, seven hundred forty".