64221674746000 has 80 divisors (see below), whose sum is σ = 155906688083328. Its totient is φ = 25586324400000.

The previous prime is 64221674745953. The next prime is 64221674746081. The reversal of 64221674746000 is 64747612246.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63463812 + ... + 64467811.

Almost surely, 2^{64221674746000} is an apocalyptic number.

It is an amenable number.

64221674746000 is an abundant number, since it is smaller than the sum of its proper divisors (91685013337328).

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

64221674746000 is a wasteful number, since it uses less digits than its factorization.

64221674746000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127931897 (or 127931881 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 49.

The spelling of 64221674746000 in words is "sixty-four trillion, two hundred twenty-one billion, six hundred seventy-four million, seven hundred forty-six thousand".