118290439550 has 48 divisors (see below), whose sum is σ = 233100830592. Its totient is φ = 44506444800.

The previous prime is 118290439549. The next prime is 118290439627. The reversal of 118290439550 is 55934092811.

It is a junction number, because it is equal to n+sod(n) for n = 118290439495 and 118290439504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1422419 + ... + 1503281.

It is an arithmetic number, because the mean of its divisors is an integer number (4856267304).

Almost surely, 2^118290439550 is an apocalyptic number.

118290439550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118290439550 is a deficient number, since it is larger than the sum of its proper divisors (114810391042).

118290439550 is a wasteful number, since it uses less digits than its factorization.

118290439550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82613 (or 82608 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 47.

The spelling of 118290439550 in words is "one hundred eighteen billion, two hundred ninety million, four hundred thirty-nine thousand, five hundred fifty".