16538043054 has 32 divisors (see below), whose sum is σ = 37715721120. Its totient is φ = 4789297152.

The previous prime is 16538043031. The next prime is 16538043089. The reversal of 16538043054 is 45034083561.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 6234739 + ... + 6237390.

It is an arithmetic number, because the mean of its divisors is an integer number (1178616285).

Almost surely, 2^16538043054 is an apocalyptic number.

16538043054 is an abundant number, since it is smaller than the sum of its proper divisors (21177678066).

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

16538043054 is a wasteful number, since it uses less digits than its factorization.

16538043054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12472164.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 16538043054 in words is "sixteen billion, five hundred thirty-eight million, forty-three thousand, fifty-four".