64305156402 has 12 divisors (see below), whose sum is σ = 139327838910. Its totient is φ = 21435052128.

The previous prime is 64305156401. The next prime is 64305156463. The reversal of 64305156402 is 20465150346.

64305156402 is a `hidden beast` number, since 6 + 4 + 3 + 0 + 5 + 1 + 5 + 640 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 56706373161 + 7598783241 = 238131^2 + 87171^2 .

It is not an unprimeable number, because it can be changed into a prime (64305156401) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1786254327 + ... + 1786254362.

Almost surely, 2^64305156402 is an apocalyptic number.

64305156402 is an abundant number, since it is smaller than the sum of its proper divisors (75022682508).

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

64305156402 is a wasteful number, since it uses less digits than its factorization.

64305156402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3572508697 (or 3572508694 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 64305156402 in words is "sixty-four billion, three hundred five million, one hundred fifty-six thousand, four hundred two".