16651332054 has 64 divisors (see below), whose sum is σ = 42699770880. Its totient is φ = 4711322880.

The previous prime is 16651332017. The next prime is 16651332079. The reversal of 16651332054 is 45023315661.

16651332054 is a `hidden beast` number, since 1 + 66 + 513 + 32 + 0 + 54 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174907 + ... + 252774.

It is an arithmetic number, because the mean of its divisors is an integer number (667183920).

Almost surely, 2^16651332054 is an apocalyptic number.

16651332054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16651332054 is an abundant number, since it is smaller than the sum of its proper divisors (26048438826).

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

16651332054 is a wasteful number, since it uses less digits than its factorization.

16651332054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427802 (or 427796 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 16651332054 in words is "sixteen billion, six hundred fifty-one million, three hundred thirty-two thousand, fifty-four".