16631131000 has 64 divisors (see below), whose sum is σ = 42454769760. Its totient is φ = 6047680000.

The previous prime is 16631130983. The next prime is 16631131003. The reversal of 16631131000 is 13113661.

It is a happy number.

It is a super-2 number, since 2×16631131000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16631131003) 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, 744961 + ... + 766960.

Almost surely, 2^16631131000 is an apocalyptic number.

16631131000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16631131000 is an abundant number, since it is smaller than the sum of its proper divisors (25823638760).

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

16631131000 is a wasteful number, since it uses less digits than its factorization.

16631131000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511953 (or 1511939 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 16631131000 its reverse (13113661), we get a palindrome (16644244661).

The spelling of 16631131000 in words is "sixteen billion, six hundred thirty-one million, one hundred thirty-one thousand".