2669434859520 has 2496 divisors, whose sum is σ = 11732988653568. Its totient is φ = 578086502400.

The previous prime is 2669434859453. The next prime is 2669434859543. The reversal of 2669434859520 is 259584349662.

It is a happy number.

2669434859520 is a `hidden beast` number, since 2 + 6 + 6 + 9 + 4 + 34 + 8 + 595 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2496).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 86110801905 + ... + 86110801935.

It is an arithmetic number, because the mean of its divisors is an integer number (4700716608).

Almost surely, 2^{2669434859520} is an apocalyptic number.

2669434859520 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 2669434859520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5866494326784).

2669434859520 is an abundant number, since it is smaller than the sum of its proper divisors (9063553794048).

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

2669434859520 is an equidigital number, since it uses as much as digits as its factorization.

2669434859520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 111974400, while the sum is 63.

The spelling of 2669434859520 in words is "two trillion, six hundred sixty-nine billion, four hundred thirty-four million, eight hundred fifty-nine thousand, five hundred twenty".