2156100400262 has 32 divisors (see below), whose sum is σ = 3302397637632. Its totient is φ = 1055614339584.

The previous prime is 2156100400243. The next prime is 2156100400271. The reversal of 2156100400262 is 2620040016512.

It is a congruent number.

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, 5840978 + ... + 6199130.

It is an arithmetic number, because the mean of its divisors is an integer number (103199926176).

Almost surely, 2^{2156100400262} is an apocalyptic number.

2156100400262 is a deficient number, since it is larger than the sum of its proper divisors (1146297237370).

2156100400262 is a wasteful number, since it uses less digits than its factorization.

2156100400262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358592.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 2156100400262 its reverse (2620040016512), we get a palindrome (4776140416774).

The spelling of 2156100400262 in words is "two trillion, one hundred fifty-six billion, one hundred million, four hundred thousand, two hundred sixty-two".