61836616446 has 16 divisors (see below), whose sum is σ = 134916254208. Its totient is φ = 18738368600.

The previous prime is 61836616433. The next prime is 61836616483. The reversal of 61836616446 is 64461663816.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468459150 + ... + 468459281.

It is an arithmetic number, because the mean of its divisors is an integer number (8432265888).

Almost surely, 2^61836616446 is an apocalyptic number.

61836616446 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

61836616446 is an abundant number, since it is smaller than the sum of its proper divisors (73079637762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61836616446 is a wasteful number, since it uses less digits than its factorization.

61836616446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936918447.

The product of its digits is 2985984, while the sum is 51.

The spelling of 61836616446 in words is "sixty-one billion, eight hundred thirty-six million, six hundred sixteen thousand, four hundred forty-six".