64036542166402 has 8 divisors (see below), whose sum is σ = 103443645038076. Its totient is φ = 29555327153712.

The previous prime is 64036542166391. The next prime is 64036542166409. The reversal of 64036542166402 is 20466124563046.

It can be written as a sum of positive squares in 2 ways, for example, as 62643884914521 + 1392657251881 = 7914789^2 + 1180109^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (64036542166409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1231471964713 + ... + 1231471964764.

Almost surely, 2^{64036542166402} is an apocalyptic number.

64036542166402 is a deficient number, since it is larger than the sum of its proper divisors (39407102871674).

64036542166402 is a wasteful number, since it uses less digits than its factorization.

64036542166402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462943929492.

The product of its (nonzero) digits is 4976640, while the sum is 49.

The spelling of 64036542166402 in words is "sixty-four trillion, thirty-six billion, five hundred forty-two million, one hundred sixty-six thousand, four hundred two".