12662699490 has 256 divisors, whose sum is σ = 40327372800. Its totient is φ = 2766161664.

The previous prime is 12662699479. The next prime is 12662699503. The reversal of 12662699490 is 9499626621.

It is a happy number.

12662699490 is a `hidden beast` number, since 1 + 2 + 6 + 62 + 6 + 99 + 490 = 666.

12662699490 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5644309 + ... + 5646551.

It is an arithmetic number, because the mean of its divisors is an integer number (157528800).

Almost surely, 2^12662699490 is an apocalyptic number.

12662699490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12662699490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20163686400).

12662699490 is an abundant number, since it is smaller than the sum of its proper divisors (27664673310).

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

12662699490 is a wasteful number, since it uses less digits than its factorization.

12662699490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398 (or 2392 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

The spelling of 12662699490 in words is "twelve billion, six hundred sixty-two million, six hundred ninety-nine thousand, four hundred ninety".