36664571447461 has 16 divisors (see below), whose sum is σ = 36872510633280. Its totient is φ = 36457261401600.

The previous prime is 36664571447423. The next prime is 36664571447473. The reversal of 36664571447461 is 16474417546663.

It is a cyclic number.

It is not a de Polignac number, because 36664571447461 - 2⁹ = 36664571446949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36664571447393 and 36664571447402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36664571447411) 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, 272019861 + ... + 272154613.

It is an arithmetic number, because the mean of its divisors is an integer number (2304531914580).

Almost surely, 2^{36664571447461} is an apocalyptic number.

It is an amenable number.

36664571447461 is a deficient number, since it is larger than the sum of its proper divisors (207939185819).

36664571447461 is a wasteful number, since it uses less digits than its factorization.

36664571447461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137076.

The product of its digits is 243855360, while the sum is 64.

The spelling of 36664571447461 in words is "thirty-six trillion, six hundred sixty-four billion, five hundred seventy-one million, four hundred forty-seven thousand, four hundred sixty-one".