3655256862000 has 320 divisors, whose sum is σ = 12222956573568. Its totient is φ = 938995200000.

The previous prime is 3655256861981. The next prime is 3655256862011. The reversal of 3655256862000 is 2686525563.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22340490 + ... + 22503510.

Almost surely, 2^{3655256862000} is an apocalyptic number.

3655256862000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3655256862000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6111478286784).

3655256862000 is an abundant number, since it is smaller than the sum of its proper divisors (8567699711568).

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

3655256862000 is a wasteful number, since it uses less digits than its factorization.

3655256862000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163185 (or 163169 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 3655256862000 in words is "three trillion, six hundred fifty-five billion, two hundred fifty-six million, eight hundred sixty-two thousand".