11146491657 has 48 divisors (see below), whose sum is σ = 19010667520. Its totient is φ = 6158592000.

The previous prime is 11146491641. The next prime is 11146491667. The reversal of 11146491657 is 75619464111.

It is a happy number.

11146491657 is a `hidden beast` number, since 11 + 146 + 491 + 6 + 5 + 7 = 666.

It is not a de Polignac number, because 11146491657 - 2⁴ = 11146491641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11146491667) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3515769 + ... + 3518937.

Almost surely, 2^11146491657 is an apocalyptic number.

It is an amenable number.

11146491657 is a deficient number, since it is larger than the sum of its proper divisors (7864175863).

11146491657 is a wasteful number, since it uses less digits than its factorization.

11146491657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5014 (or 5011 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The spelling of 11146491657 in words is "eleven billion, one hundred forty-six million, four hundred ninety-one thousand, six hundred fifty-seven".