16000061231 has 12 divisors (see below), whose sum is σ = 20099251536. Its totient is φ = 12467579520.

The previous prime is 16000061201. The next prime is 16000061237. The reversal of 16000061231 is 13216000061.

It is not a de Polignac number, because 16000061231 - 2⁶ = 16000061167 is a prime.

It is a super-2 number, since 2×16000061231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16000061237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9444290 + ... + 9445983.

It is an arithmetic number, because the mean of its divisors is an integer number (1674937628).

Almost surely, 2^16000061231 is an apocalyptic number.

16000061231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16000061231 is a deficient number, since it is larger than the sum of its proper divisors (4099190305).

16000061231 is a wasteful number, since it uses less digits than its factorization.

16000061231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18890302 (or 18890291 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 16000061231 its reverse (13216000061), we get a palindrome (29216061292).

The spelling of 16000061231 in words is "sixteen billion, sixty-one thousand, two hundred thirty-one".