11661315486 has 16 divisors (see below), whose sum is σ = 23324456064. Its totient is φ = 3886800984.

The previous prime is 11661315481. The next prime is 11661315503. The reversal of 11661315486 is 68451316611.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11661315481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15495 + ... + 153501.

It is an arithmetic number, because the mean of its divisors is an integer number (1457778504).

Almost surely, 2^11661315486 is an apocalyptic number.

11661315486 is an abundant number, since it is smaller than the sum of its proper divisors (11663140578).

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

11661315486 is a wasteful number, since it uses less digits than its factorization.

11661315486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152095.

The product of its digits is 103680, while the sum is 42.

The spelling of 11661315486 in words is "eleven billion, six hundred sixty-one million, three hundred fifteen thousand, four hundred eighty-six".