142720532464 has 40 divisors (see below), whose sum is σ = 288108845568. Its totient is φ = 68412891840.

The previous prime is 142720532453. The next prime is 142720532483. The reversal of 142720532464 is 464235027241.

It is a super-2 number, since 2×142720532464² (a number of 23 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, 1291522 + ... + 1397665.

Almost surely, 2^142720532464 is an apocalyptic number.

It is an amenable number.

142720532464 is an abundant number, since it is smaller than the sum of its proper divisors (145388313104).

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

142720532464 is a wasteful number, since it uses less digits than its factorization.

142720532464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689333 (or 2689327 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 40.

The spelling of 142720532464 in words is "one hundred forty-two billion, seven hundred twenty million, five hundred thirty-two thousand, four hundred sixty-four".