72455454065 has 8 divisors (see below), whose sum is σ = 86948263080. Its totient is φ = 57963217792.

The previous prime is 72455454047. The next prime is 72455454083. The reversal of 72455454065 is 56045455427.

It is an interprime number because it is at equal distance from previous prime (72455454047) and next prime (72455454083).

It can be written as a sum of positive squares in 4 ways, for example, as 8221592929 + 64233861136 = 90673^2 + 253444^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 72455454065 - 2²⁸ = 72187018609 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217931 + ... + 438639.

It is an arithmetic number, because the mean of its divisors is an integer number (10868532885).

Almost surely, 2^72455454065 is an apocalyptic number.

It is an amenable number.

72455454065 is a deficient number, since it is larger than the sum of its proper divisors (14492809015).

72455454065 is a wasteful number, since it uses less digits than its factorization.

72455454065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286371.

The product of its (nonzero) digits is 3360000, while the sum is 47.

The spelling of 72455454065 in words is "seventy-two billion, four hundred fifty-five million, four hundred fifty-four thousand, sixty-five".