61504669537466 has 32 divisors (see below), whose sum is σ = 99362291455440. Its totient is φ = 28446805094400.

The previous prime is 61504669537417. The next prime is 61504669537477. The reversal of 61504669537466 is 66473596640516.

It can be written as a sum of positive squares in 8 ways, for example, as 44012994424441 + 17491675113025 = 6634229^2 + 4182305^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61504669537396 and 61504669537405.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8829755 + ... + 14176526.

Almost surely, 2^{61504669537466} is an apocalyptic number.

61504669537466 is a deficient number, since it is larger than the sum of its proper divisors (37857621917974).

61504669537466 is a wasteful number, since it uses less digits than its factorization.

61504669537466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23007650.

The product of its (nonzero) digits is 587865600, while the sum is 68.

The spelling of 61504669537466 in words is "sixty-one trillion, five hundred four billion, six hundred sixty-nine million, five hundred thirty-seven thousand, four hundred sixty-six".