455146640734721 has 32 divisors (see below), whose sum is σ = 516114991392000. Its totient is φ = 397900115009280.

The previous prime is 455146640734711. The next prime is 455146640734783. The reversal of 455146640734721 is 127437046641554.

It is not a de Polignac number, because 455146640734721 - 2¹⁸ = 455146640472577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (455146640734711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21790894940 + ... + 21790915826.

It is an arithmetic number, because the mean of its divisors is an integer number (16128593481000).

Almost surely, 2^{455146640734721} is an apocalyptic number.

It is an amenable number.

455146640734721 is a deficient number, since it is larger than the sum of its proper divisors (60968350657279).

455146640734721 is a wasteful number, since it uses less digits than its factorization.

455146640734721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43929.

The product of its (nonzero) digits is 67737600, while the sum is 59.

The spelling of 455146640734721 in words is "four hundred fifty-five trillion, one hundred forty-six billion, six hundred forty million, seven hundred thirty-four thousand, seven hundred twenty-one".