55631145111999 has 8 divisors (see below), whose sum is σ = 76567597573632. Its totient is φ = 35891061362520.

The previous prime is 55631145111911. The next prime is 55631145112027. The reversal of 55631145111999 is 99911154113655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55631145111999 - 2¹⁵ = 55631145079231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55631145115999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299092177929 + ... + 299092178114.

It is an arithmetic number, because the mean of its divisors is an integer number (9570949696704).

Almost surely, 2^{55631145111999} is an apocalyptic number.

55631145111999 is a deficient number, since it is larger than the sum of its proper divisors (20936452461633).

55631145111999 is a wasteful number, since it uses less digits than its factorization.

55631145111999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598184356077.

The product of its digits is 6561000, while the sum is 60.

The spelling of 55631145111999 in words is "fifty-five trillion, six hundred thirty-one billion, one hundred forty-five million, one hundred eleven thousand, nine hundred ninety-nine".