64212245462645 has 64 divisors (see below), whose sum is σ = 97416729569280. Its totient is φ = 39642548214528.

The previous prime is 64212245462623. The next prime is 64212245462671. The reversal of 64212245462645 is 54626454221246.

It is a happy number.

It is not a de Polignac number, because 64212245462645 - 2¹² = 64212245458549 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29287607 + ... + 31403636.

It is an arithmetic number, because the mean of its divisors is an integer number (1522136399520).

Almost surely, 2^{64212245462645} is an apocalyptic number.

It is an amenable number.

64212245462645 is a deficient number, since it is larger than the sum of its proper divisors (33204484106635).

64212245462645 is a wasteful number, since it uses less digits than its factorization.

64212245462645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60691354.

The product of its digits is 22118400, while the sum is 53.

The spelling of 64212245462645 in words is "sixty-four trillion, two hundred twelve billion, two hundred forty-five million, four hundred sixty-two thousand, six hundred forty-five".