65055097809900 has 216 divisors, whose sum is σ = 222483549860208. Its totient is φ = 15768483840000.

The previous prime is 65055097809893. The next prime is 65055097809913. The reversal of 65055097809900 is 990879055056.

65055097809900 is a `hidden beast` number, since 6 + 5 + 0 + 550 + 9 + 78 + 0 + 9 + 9 + 0 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 63654940 + ... + 64668860.

It is an arithmetic number, because the mean of its divisors is an integer number (1030016434538).

Almost surely, 2^{65055097809900} is an apocalyptic number.

65055097809900 is a gapful number since it is divisible by the number (60) 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 65055097809900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111241774930104).

65055097809900 is an abundant number, since it is smaller than the sum of its proper divisors (157428452050308).

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

65055097809900 is a wasteful number, since it uses less digits than its factorization.

65055097809900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020433 (or 1020423 counting only the distinct ones).

The product of its (nonzero) digits is 30618000, while the sum is 63.

The spelling of 65055097809900 in words is "sixty-five trillion, fifty-five billion, ninety-seven million, eight hundred nine thousand, nine hundred".