155577827604 has 96 divisors (see below), whose sum is σ = 395906716800. Its totient is φ = 47362613760.

The previous prime is 155577827599. The next prime is 155577827611. The reversal of 155577827604 is 406728775551.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4352734 + ... + 4388330.

It is an arithmetic number, because the mean of its divisors is an integer number (4124028300).

Almost surely, 2^155577827604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155577827604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197953358400).

155577827604 is an abundant number, since it is smaller than the sum of its proper divisors (240328889196).

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

155577827604 is a wasteful number, since it uses less digits than its factorization.

155577827604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36313 (or 36311 counting only the distinct ones).

The product of its (nonzero) digits is 16464000, while the sum is 57.

The spelling of 155577827604 in words is "one hundred fifty-five billion, five hundred seventy-seven million, eight hundred twenty-seven thousand, six hundred four".