35661406620 has 96 divisors (see below), whose sum is σ = 119078120448. Its totient is φ = 7796777472.

The previous prime is 35661406607. The next prime is 35661406621. The reversal of 35661406620 is 2660416653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35661406621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1836169 + ... + 1855488.

It is an arithmetic number, because the mean of its divisors is an integer number (1240397088).

Almost surely, 2^35661406620 is an apocalyptic number.

35661406620 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

35661406620 is an abundant number, since it is smaller than the sum of its proper divisors (83416713828).

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

35661406620 is a wasteful number, since it uses less digits than its factorization.

35661406620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3691699 (or 3691697 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 35661406620 in words is "thirty-five billion, six hundred sixty-one million, four hundred six thousand, six hundred twenty".