645415152062 has 16 divisors (see below), whose sum is σ = 974354190480. Its totient is φ = 320634857088.

The previous prime is 645415152061. The next prime is 645415152097. The reversal of 645415152062 is 260251514546.

It is a super-2 number, since 2×645415152062² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645415152061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 817163 + ... + 1399494.

It is an arithmetic number, because the mean of its divisors is an integer number (60897136905).

Almost surely, 2^645415152062 is an apocalyptic number.

645415152062 is a deficient number, since it is larger than the sum of its proper divisors (328939038418).

645415152062 is a wasteful number, since it uses less digits than its factorization.

645415152062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2217595.

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 645415152062 in words is "six hundred forty-five billion, four hundred fifteen million, one hundred fifty-two thousand, sixty-two".