20835465612900 has 144 divisors (see below), whose sum is σ = 61189501079616. Its totient is φ = 5472678689280.

The previous prime is 20835465612893. The next prime is 20835465612919. The reversal of 20835465612900 is 921656453802.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 241900642 + ... + 241986758.

Almost surely, 2^{20835465612900} is an apocalyptic number.

20835465612900 is a gapful number since it is divisible by the number (20) 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 20835465612900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30594750539808).

20835465612900 is an abundant number, since it is smaller than the sum of its proper divisors (40354035466716).

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

20835465612900 is a wasteful number, since it uses less digits than its factorization.

20835465612900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98238 (or 98231 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 20835465612900 in words is "twenty trillion, eight hundred thirty-five billion, four hundred sixty-five million, six hundred twelve thousand, nine hundred".