72545121160154 has 8 divisors (see below), whose sum is σ = 110601578162388. Its totient is φ = 35677928439360.

The previous prime is 72545121160151. The next prime is 72545121160159. The reversal of 72545121160154 is 45106112154527.

It can be written as a sum of positive squares in 2 ways, for example, as 47681165574025 + 24863955586129 = 6905155^2 + 4986377^2 .

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

It is not an unprimeable number, because it can be changed into a prime (72545121160151) 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, 297316070207 + ... + 297316070450.

Almost surely, 2^{72545121160154} is an apocalyptic number.

72545121160154 is a deficient number, since it is larger than the sum of its proper divisors (38056457002234).

72545121160154 is a wasteful number, since it uses less digits than its factorization.

72545121160154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594632140720.

The product of its (nonzero) digits is 336000, while the sum is 44.

The spelling of 72545121160154 in words is "seventy-two trillion, five hundred forty-five billion, one hundred twenty-one million, one hundred sixty thousand, one hundred fifty-four".