18616003820544 has 176 divisors, whose sum is σ = 54677925180032. Its totient is φ = 5594791329792.

The previous prime is 18616003820527. The next prime is 18616003820551. The reversal of 18616003820544 is 44502830061681.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 18616003820493 and 18616003820502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3703054 + ... + 7137549.

It is an arithmetic number, because the mean of its divisors is an integer number (310670029432).

Almost surely, 2^{18616003820544} is an apocalyptic number.

It is an amenable number.

18616003820544 is an abundant number, since it is smaller than the sum of its proper divisors (36061921359488).

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

18616003820544 is a wasteful number, since it uses less digits than its factorization.

18616003820544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10840682 (or 10840664 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 18616003820544 in words is "eighteen trillion, six hundred sixteen billion, three million, eight hundred twenty thousand, five hundred forty-four".