6557201100156 has 96 divisors (see below), whose sum is σ = 18136560960000. Its totient is φ = 1804110029568.

The previous prime is 6557201100097. The next prime is 6557201100181. The reversal of 6557201100156 is 6510011027556.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2627931 + ... + 4474418.

It is an arithmetic number, because the mean of its divisors is an integer number (188922510000).

Almost surely, 2^{6557201100156} is an apocalyptic number.

It is an amenable number.

6557201100156 is an abundant number, since it is smaller than the sum of its proper divisors (11579359859844).

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

6557201100156 is a wasteful number, since it uses less digits than its factorization.

6557201100156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7102771 (or 7102769 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 39.

The spelling of 6557201100156 in words is "six trillion, five hundred fifty-seven billion, two hundred one million, one hundred thousand, one hundred fifty-six".