155577429892868 has 48 divisors (see below), whose sum is σ = 274222033956864. Its totient is φ = 77229440524320.

The previous prime is 155577429892823. The next prime is 155577429892873. The reversal of 155577429892868 is 868298924775551.

It is a self number, because there is not a number n which added to its sum of digits gives 155577429892868.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3145304705 + ... + 3145354167.

It is an arithmetic number, because the mean of its divisors is an integer number (5712959040768).

Almost surely, 2^{155577429892868} is an apocalyptic number.

It is an amenable number.

155577429892868 is a deficient number, since it is larger than the sum of its proper divisors (118644604063996).

155577429892868 is a wasteful number, since it uses less digits than its factorization.

155577429892868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55232 (or 55230 counting only the distinct ones).

The product of its digits is 24385536000, while the sum is 86.

The spelling of 155577429892868 in words is "one hundred fifty-five trillion, five hundred seventy-seven billion, four hundred twenty-nine million, eight hundred ninety-two thousand, eight hundred sixty-eight".