45138253966 has 8 divisors (see below), whose sum is σ = 72915641064. Its totient is φ = 20833040280.

The previous prime is 45138253921. The next prime is 45138253969. The reversal of 45138253966 is 66935283154.

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

It is a super-2 number, since 2×45138253966² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45138253969) 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, 868043320 + ... + 868043371.

It is an arithmetic number, because the mean of its divisors is an integer number (9114455133).

Almost surely, 2^45138253966 is an apocalyptic number.

45138253966 is a deficient number, since it is larger than the sum of its proper divisors (27777387098).

45138253966 is a wasteful number, since it uses less digits than its factorization.

45138253966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736086706.

The product of its digits is 4665600, while the sum is 52.

The spelling of 45138253966 in words is "forty-five billion, one hundred thirty-eight million, two hundred fifty-three thousand, nine hundred sixty-six".