16442140375664 has 10 divisors (see below), whose sum is σ = 31856646977880. Its totient is φ = 8221070187824.

The previous prime is 16442140375663. The next prime is 16442140375699. The reversal of 16442140375664 is 46657304124461.

It is a super-3 number, since 3×16442140375664³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442140375663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513816886724 + ... + 513816886755.

It is an arithmetic number, because the mean of its divisors is an integer number (3185664697788).

Almost surely, 2^{16442140375664} is an apocalyptic number.

It is an amenable number.

16442140375664 is a deficient number, since it is larger than the sum of its proper divisors (15414506602216).

16442140375664 is a wasteful number, since it uses less digits than its factorization.

16442140375664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027633773487 (or 1027633773481 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 53.

The spelling of 16442140375664 in words is "sixteen trillion, four hundred forty-two billion, one hundred forty million, three hundred seventy-five thousand, six hundred sixty-four".