56434162143021 has 96 divisors (see below), whose sum is σ = 87017685488640. Its totient is φ = 32424411082752.

The previous prime is 56434162143001. The next prime is 56434162143077. The reversal of 56434162143021 is 12034126143465.

It is not a de Polignac number, because 56434162143021 - 2⁶ = 56434162142957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56434162143001) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 198789240 + ... + 199072926.

It is an arithmetic number, because the mean of its divisors is an integer number (906434223840).

Almost surely, 2^{56434162143021} is an apocalyptic number.

It is an amenable number.

56434162143021 is a deficient number, since it is larger than the sum of its proper divisors (30583523345619).

56434162143021 is a wasteful number, since it uses less digits than its factorization.

56434162143021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284035 (or 284022 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

Adding to 56434162143021 its reverse (12034126143465), we get a palindrome (68468288286486).

The spelling of 56434162143021 in words is "fifty-six trillion, four hundred thirty-four billion, one hundred sixty-two million, one hundred forty-three thousand, twenty-one".