16401446660352 has 72 divisors (see below), whose sum is σ = 47009595144064. Its totient is φ = 5046598969344.

The previous prime is 16401446660279. The next prime is 16401446660363. The reversal of 16401446660352 is 25306664410461.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821376568 + ... + 821396535.

Almost surely, 2^{16401446660352} is an apocalyptic number.

16401446660352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16401446660352 is an abundant number, since it is smaller than the sum of its proper divisors (30608148483712).

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

16401446660352 is a wasteful number, since it uses less digits than its factorization.

16401446660352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642773135 (or 1642773121 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 48.

The spelling of 16401446660352 in words is "sixteen trillion, four hundred one billion, four hundred forty-six million, six hundred sixty thousand, three hundred fifty-two".