142657312456646 has 16 divisors (see below), whose sum is σ = 233363471208000. Its totient is φ = 65008395548928.

The previous prime is 142657312456627. The next prime is 142657312456699. The reversal of 142657312456646 is 646654213756241.

It is a happy number.

It is a super-2 number, since 2×142657312456646² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 34726704971 + ... + 34726709078.

It is an arithmetic number, because the mean of its divisors is an integer number (14585216950500).

Almost surely, 2^{142657312456646} is an apocalyptic number.

142657312456646 is a deficient number, since it is larger than the sum of its proper divisors (90706158751354).

142657312456646 is a wasteful number, since it uses less digits than its factorization.

142657312456646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69453414143.

The product of its digits is 174182400, while the sum is 62.

The spelling of 142657312456646 in words is "one hundred forty-two trillion, six hundred fifty-seven billion, three hundred twelve million, four hundred fifty-six thousand, six hundred forty-six".