10990537657 has 16 divisors (see below), whose sum is σ = 12289305600. Its totient is φ = 9742496400.

The previous prime is 10990537637. The next prime is 10990537661. The reversal of 10990537657 is 75673509901.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10990537657 - 2¹¹ = 10990535609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10990537627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263932 + ... + 302722.

It is an arithmetic number, because the mean of its divisors is an integer number (768081600).

Almost surely, 2^10990537657 is an apocalyptic number.

It is an amenable number.

10990537657 is a deficient number, since it is larger than the sum of its proper divisors (1298767943).

10990537657 is a wasteful number, since it uses less digits than its factorization.

10990537657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39444.

The product of its (nonzero) digits is 1786050, while the sum is 52.

The spelling of 10990537657 in words is "ten billion, nine hundred ninety million, five hundred thirty-seven thousand, six hundred fifty-seven".