61466531642453 has 16 divisors (see below), whose sum is σ = 74494629483264. Its totient is φ = 49509805067520.

The previous prime is 61466531642441. The next prime is 61466531642489. The reversal of 61466531642453 is 35424613566416.

It is not a de Polignac number, because 61466531642453 - 2⁶ = 61466531642389 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 (61466531642413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 399092618 + ... + 399246603.

It is an arithmetic number, because the mean of its divisors is an integer number (4655914342704).

Almost surely, 2^{61466531642453} is an apocalyptic number.

It is an amenable number.

61466531642453 is a deficient number, since it is larger than the sum of its proper divisors (13028097840811).

61466531642453 is a wasteful number, since it uses less digits than its factorization.

61466531642453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798339892.

The product of its digits is 37324800, while the sum is 56.

The spelling of 61466531642453 in words is "sixty-one trillion, four hundred sixty-six billion, five hundred thirty-one million, six hundred forty-two thousand, four hundred fifty-three".