76464327051661 has 16 divisors (see below), whose sum is σ = 76949054582400. Its totient is φ = 75981602491200.

The previous prime is 76464327051659. The next prime is 76464327051683. The reversal of 76464327051661 is 16615072346467.

It is a cyclic number.

It is not a de Polignac number, because 76464327051661 - 2¹ = 76464327051659 is a prime.

It is a super-2 number, since 2×76464327051661² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76464327051596 and 76464327051605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76464327051611) 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, 112818730 + ... + 113494468.

It is an arithmetic number, because the mean of its divisors is an integer number (4809315911400).

Almost surely, 2^{76464327051661} is an apocalyptic number.

It is an amenable number.

76464327051661 is a deficient number, since it is larger than the sum of its proper divisors (484727530739).

76464327051661 is a wasteful number, since it uses less digits than its factorization.

76464327051661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677220.

The product of its (nonzero) digits is 30481920, while the sum is 58.

The spelling of 76464327051661 in words is "seventy-six trillion, four hundred sixty-four billion, three hundred twenty-seven million, fifty-one thousand, six hundred sixty-one".