619499664960 has 448 divisors, whose sum is σ = 2234673045504. Its totient is φ = 144042393600.

The previous prime is 619499664781. The next prime is 619499664961. The reversal of 619499664960 is 69466994916.

It is not an unprimeable number, because it can be changed into a prime (619499664961) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36983307 + ... + 37000053.

Almost surely, 2^619499664960 is an apocalyptic number.

619499664960 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 619499664960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1117336522752).

619499664960 is an abundant number, since it is smaller than the sum of its proper divisors (1615173380544).

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

619499664960 is a wasteful number, since it uses less digits than its factorization.

619499664960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16922 (or 16912 counting only the distinct ones).

The product of its (nonzero) digits is 136048896, while the sum is 69.

The spelling of 619499664960 in words is "six hundred nineteen billion, four hundred ninety-nine million, six hundred sixty-four thousand, nine hundred sixty".