2606994918990 has 256 divisors, whose sum is σ = 8947007815680. Its totient is φ = 524238480000.

The previous prime is 2606994918919. The next prime is 2606994918991. The reversal of 2606994918990 is 998194996062.

2606994918990 is a `hidden beast` number, since 2 + 606 + 9 + 9 + 4 + 9 + 1 + 8 + 9 + 9 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2606994918991) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1378036 + ... + 2667015.

It is an arithmetic number, because the mean of its divisors is an integer number (34949249280).

Almost surely, 2^{2606994918990} is an apocalyptic number.

2606994918990 is an abundant number, since it is smaller than the sum of its proper divisors (6340012896690).

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

2606994918990 is a wasteful number, since it uses less digits than its factorization.

2606994918990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4045116 (or 4045110 counting only the distinct ones).

The product of its (nonzero) digits is 136048896, while the sum is 72.

The spelling of 2606994918990 in words is "two trillion, six hundred six billion, nine hundred ninety-four million, nine hundred eighteen thousand, nine hundred ninety".