551630787036155 has 32 divisors (see below), whose sum is σ = 673717409971200. Its totient is φ = 433476406300032.

The previous prime is 551630787036079. The next prime is 551630787036181.

551630787036155 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 551630787036155 - 2¹⁴ = 551630787019771 is a prime.

It is a super-2 number, since 2×551630787036155² (a number of 30 digits) contains 22 as substring.

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, 4069236266 + ... + 4069371824.

It is an arithmetic number, because the mean of its divisors is an integer number (21053669061600).

Almost surely, 2^{551630787036155} is an apocalyptic number.

551630787036155 is a deficient number, since it is larger than the sum of its proper divisors (122086622935045).

551630787036155 is a wasteful number, since it uses less digits than its factorization.

551630787036155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146603.

The product of its (nonzero) digits is 79380000, while the sum is 62.

The spelling of 551630787036155 in words is "five hundred fifty-one trillion, six hundred thirty billion, seven hundred eighty-seven million, thirty-six thousand, one hundred fifty-five".