3551455560631 has 16 divisors (see below), whose sum is σ = 4026134016000. Its totient is φ = 3103478215200.

The previous prime is 3551455560589. The next prime is 3551455560637. The reversal of 3551455560631 is 1360655541553.

It is not a de Polignac number, because 3551455560631 - 2¹⁵ = 3551455527863 is a prime.

It is a super-2 number, since 2×3551455560631² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3551455560637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34898271 + ... + 34999888.

It is an arithmetic number, because the mean of its divisors is an integer number (251633376000).

Almost surely, 2^{3551455560631} is an apocalyptic number.

3551455560631 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3551455560631 is a deficient number, since it is larger than the sum of its proper divisors (474678455369).

3551455560631 is a wasteful number, since it uses less digits than its factorization.

3551455560631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69898350.

The product of its (nonzero) digits is 4050000, while the sum is 49.

The spelling of 3551455560631 in words is "three trillion, five hundred fifty-one billion, four hundred fifty-five million, five hundred sixty thousand, six hundred thirty-one".