20119486464 has 408 divisors, whose sum is σ = 72628013952. Its totient is φ = 5214044160.

The previous prime is 20119486427. The next prime is 20119486469. The reversal of 20119486464 is 46468491102.

20119486464 is a `hidden beast` number, since 20 + 1 + 1 + 94 + 86 + 464 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20119486469) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45416227 + ... + 45416669.

Almost surely, 2^20119486464 is an apocalyptic number.

20119486464 is a gapful number since it is divisible by the number (24) 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 20119486464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36314006976).

20119486464 is an abundant number, since it is smaller than the sum of its proper divisors (52508527488).

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

20119486464 is an equidigital number, since it uses as much as digits as its factorization.

20119486464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 20119486464 in words is "twenty billion, one hundred nineteen million, four hundred eighty-six thousand, four hundred sixty-four".