2119644165408 has 576 divisors, whose sum is σ = 7471697748480. Its totient is φ = 518831308800.

The previous prime is 2119644165391. The next prime is 2119644165479. The reversal of 2119644165408 is 8045614469112.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 189739663 + ... + 189750833.

It is an arithmetic number, because the mean of its divisors is an integer number (12971697480).

Almost surely, 2^{2119644165408} is an apocalyptic number.

2119644165408 is a gapful number since it is divisible by the number (28) 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 2119644165408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3735848874240).

2119644165408 is an abundant number, since it is smaller than the sum of its proper divisors (5352053583072).

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

2119644165408 is a wasteful number, since it uses less digits than its factorization.

2119644165408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11421 (or 11406 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 51.

The spelling of 2119644165408 in words is "two trillion, one hundred nineteen billion, six hundred forty-four million, one hundred sixty-five thousand, four hundred eight".