45020064661 has 16 divisors (see below), whose sum is σ = 52910544960. Its totient is φ = 37764904320.

The previous prime is 45020064641. The next prime is 45020064671. The reversal of 45020064661 is 16646002054.

It is not a de Polignac number, because 45020064661 - 2¹⁹ = 45019540373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45020064631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332566 + ... + 447928.

It is an arithmetic number, because the mean of its divisors is an integer number (3306909060).

Almost surely, 2^45020064661 is an apocalyptic number.

It is an amenable number.

45020064661 is a deficient number, since it is larger than the sum of its proper divisors (7890480299).

45020064661 is a wasteful number, since it uses less digits than its factorization.

45020064661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118116.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 45020064661 in words is "forty-five billion, twenty million, sixty-four thousand, six hundred sixty-one".