1646396502942 has 16 divisors (see below), whose sum is σ = 3293585163792. Its totient is φ = 548666808000.

The previous prime is 1646396502917. The next prime is 1646396502943. The reversal of 1646396502942 is 2492056936461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1646396502943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32979559 + ... + 33029442.

It is an arithmetic number, because the mean of its divisors is an integer number (205849072737).

Almost surely, 2^{1646396502942} is an apocalyptic number.

1646396502942 is an abundant number, since it is smaller than the sum of its proper divisors (1647188660850).

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

1646396502942 is a wasteful number, since it uses less digits than its factorization.

1646396502942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66013163.

The product of its (nonzero) digits is 16796160, while the sum is 57.

The spelling of 1646396502942 in words is "one trillion, six hundred forty-six billion, three hundred ninety-six million, five hundred two thousand, nine hundred forty-two".