456551143021 has 4 divisors (see below), whose sum is σ = 456561332032. Its totient is φ = 456540954012.

The previous prime is 456551142991. The next prime is 456551143043. The reversal of 456551143021 is 120341155654.

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, and also an emirpimes, since its reverse is a distinct semiprime: 120341155654 = 2 ⋅60170577827.

It is a cyclic number.

It is not a de Polignac number, because 456551143021 - 2⁵ = 456551142989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (456551143921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5026995 + ... + 5117008.

It is an arithmetic number, because the mean of its divisors is an integer number (114140333008).

Almost surely, 2^456551143021 is an apocalyptic number.

It is an amenable number.

456551143021 is a deficient number, since it is larger than the sum of its proper divisors (10189011).

456551143021 is a wasteful number, since it uses less digits than its factorization.

456551143021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10189010.

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 456551143021 its reverse (120341155654), we get a palindrome (576892298675).

The spelling of 456551143021 in words is "four hundred fifty-six billion, five hundred fifty-one million, one hundred forty-three thousand, twenty-one".