18146458416 has 40 divisors (see below), whose sum is σ = 46886148400. Its totient is φ = 6047813376.

The previous prime is 18146458411. The next prime is 18146458433. The reversal of 18146458416 is 61485464181.

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

It is not an unprimeable number, because it can be changed into a prime (18146458411) 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, 295110 + ... + 351258.

It is an arithmetic number, because the mean of its divisors is an integer number (1172153710).

Almost surely, 2^18146458416 is an apocalyptic number.

18146458416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18146458416 is an abundant number, since it is smaller than the sum of its proper divisors (28739689984).

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

18146458416 is a wasteful number, since it uses less digits than its factorization.

18146458416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62893 (or 62887 counting only the distinct ones).

The product of its digits is 737280, while the sum is 48.

The spelling of 18146458416 in words is "eighteen billion, one hundred forty-six million, four hundred fifty-eight thousand, four hundred sixteen".