16662714454890 has 192 divisors, whose sum is σ = 52895846615040. Its totient is φ = 3554313333120.

The previous prime is 16662714454847. The next prime is 16662714454913. The reversal of 16662714454890 is 9845441726661.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9586366 + ... + 11190345.

It is an arithmetic number, because the mean of its divisors is an integer number (275499201120).

Almost surely, 2^{16662714454890} is an apocalyptic number.

16662714454890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16662714454890 is an abundant number, since it is smaller than the sum of its proper divisors (36233132160150).

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

16662714454890 is a wasteful number, since it uses less digits than its factorization.

16662714454890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20776817 (or 20776814 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 63.

The spelling of 16662714454890 in words is "sixteen trillion, six hundred sixty-two billion, seven hundred fourteen million, four hundred fifty-four thousand, eight hundred ninety".