5515661155476 has 24 divisors (see below), whose sum is σ = 13061963733280. Its totient is φ = 1811112617952.

The previous prime is 5515661155457. The next prime is 5515661155489. The reversal of 5515661155476 is 6745511665155.

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 7 ways as a sum of consecutive naturals, for example, 3430136731 + ... + 3430138338.

Almost surely, 2^{5515661155476} is an apocalyptic number.

It is an amenable number.

5515661155476 is an abundant number, since it is smaller than the sum of its proper divisors (7546302577804).

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

5515661155476 is a wasteful number, since it uses less digits than its factorization.

5515661155476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6860275143 (or 6860275141 counting only the distinct ones).

The product of its digits is 18900000, while the sum is 57.

The spelling of 5515661155476 in words is "five trillion, five hundred fifteen billion, six hundred sixty-one million, one hundred fifty-five thousand, four hundred seventy-six".