2551216635154 has 64 divisors (see below), whose sum is σ = 4367143372032. Its totient is φ = 1106448076800.

The previous prime is 2551216635133. The next prime is 2551216635169. The reversal of 2551216635154 is 4515366121552.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 793040554 + ... + 793043770.

It is an arithmetic number, because the mean of its divisors is an integer number (68236615188).

Almost surely, 2^{2551216635154} is an apocalyptic number.

2551216635154 is a deficient number, since it is larger than the sum of its proper divisors (1815926736878).

2551216635154 is a wasteful number, since it uses less digits than its factorization.

2551216635154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6691.

The product of its digits is 1080000, while the sum is 46.

The spelling of 2551216635154 in words is "two trillion, five hundred fifty-one billion, two hundred sixteen million, six hundred thirty-five thousand, one hundred fifty-four".