35661550456644 has 72 divisors (see below), whose sum is σ = 98489767766208. Its totient is φ = 9837669072000.

The previous prime is 35661550456643. The next prime is 35661550456667. The reversal of 35661550456644 is 44665405516653.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (35661550456643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252332607 + ... + 252473894.

Almost surely, 2^{35661550456644} is an apocalyptic number.

It is an amenable number.

35661550456644 is an abundant number, since it is smaller than the sum of its proper divisors (62828217309564).

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

35661550456644 is a wasteful number, since it uses less digits than its factorization.

35661550456644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504806573 (or 504806542 counting only the distinct ones).

The product of its (nonzero) digits is 155520000, while the sum is 60.

The spelling of 35661550456644 in words is "thirty-five trillion, six hundred sixty-one billion, five hundred fifty million, four hundred fifty-six thousand, six hundred forty-four".