16533661662 has 48 divisors (see below), whose sum is σ = 41103683712. Its totient is φ = 4705074000.

The previous prime is 16533661643. The next prime is 16533661717. The reversal of 16533661662 is 26616633561.

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, 229768 + ... + 293019.

It is an arithmetic number, because the mean of its divisors is an integer number (856326744).

Almost surely, 2^16533661662 is an apocalyptic number.

16533661662 is an abundant number, since it is smaller than the sum of its proper divisors (24570022050).

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

16533661662 is a wasteful number, since it uses less digits than its factorization.

16533661662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523053 (or 523050 counting only the distinct ones).

The product of its digits is 699840, while the sum is 45.

The spelling of 16533661662 in words is "sixteen billion, five hundred thirty-three million, six hundred sixty-one thousand, six hundred sixty-two".