3655061204040 has 48 divisors (see below), whose sum is σ = 11878948914300. Its totient is φ = 974682987648.

The previous prime is 3655061204017. The next prime is 3655061204051. The reversal of 3655061204040 is 404021605563.

3655061204040 is a `hidden beast` number, since 3 + 6 + 550 + 6 + 1 + 20 + 40 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3163965792516 + 491095411524 = 1778754^2 + 700782^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3655061203986 and 3655061204004.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5076473535 + ... + 5076474254.

Almost surely, 2^{3655061204040} is an apocalyptic number.

3655061204040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3655061204040 is an abundant number, since it is smaller than the sum of its proper divisors (8223887710260).

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

3655061204040 is a wasteful number, since it uses less digits than its factorization.

3655061204040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10152947806 (or 10152947799 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 3655061204040 in words is "three trillion, six hundred fifty-five billion, sixty-one million, two hundred four thousand, forty".