645606415230 has 32 divisors (see below), whose sum is σ = 1770806168064. Its totient is φ = 147567180576.

The previous prime is 645606415217. The next prime is 645606415319. The reversal of 645606415230 is 32514606546.

It is a super-2 number, since 2×645606415230² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1537157922 + ... + 1537158341.

It is an arithmetic number, because the mean of its divisors is an integer number (55337692752).

Almost surely, 2^645606415230 is an apocalyptic number.

645606415230 is an abundant number, since it is smaller than the sum of its proper divisors (1125199752834).

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

645606415230 is a wasteful number, since it uses less digits than its factorization.

645606415230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3074316280.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 645606415230 in words is "six hundred forty-five billion, six hundred six million, four hundred fifteen thousand, two hundred thirty".