45121666664701 has 4 divisors (see below), whose sum is σ = 49223636361504. Its totient is φ = 41019696967900.

The previous prime is 45121666664699. The next prime is 45121666664747. The reversal of 45121666664701 is 10746666612154.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45121666664701 - 2¹ = 45121666664699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45121666664101) 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, 2050984848385 + ... + 2050984848406.

It is an arithmetic number, because the mean of its divisors is an integer number (12305909090376).

Almost surely, 2^{45121666664701} is an apocalyptic number.

It is an amenable number.

45121666664701 is a deficient number, since it is larger than the sum of its proper divisors (4101969696803).

45121666664701 is a wasteful number, since it uses less digits than its factorization.

45121666664701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4101969696802.

The product of its (nonzero) digits is 8709120, while the sum is 55.

The spelling of 45121666664701 in words is "forty-five trillion, one hundred twenty-one billion, six hundred sixty-six million, six hundred sixty-four thousand, seven hundred one".