16006245431 has 4 divisors (see below), whose sum is σ = 17461358664. Its totient is φ = 14551132200.

The previous prime is 16006245419. The next prime is 16006245461. The reversal of 16006245431 is 13454260061.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-16006245431 is a prime.

It is a super-2 number, since 2×16006245431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16006245401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727556600 + ... + 727556621.

It is an arithmetic number, because the mean of its divisors is an integer number (4365339666).

Almost surely, 2^16006245431 is an apocalyptic number.

16006245431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16006245431 is a deficient number, since it is larger than the sum of its proper divisors (1455113233).

16006245431 is a wasteful number, since it uses less digits than its factorization.

16006245431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455113232.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 16006245431 in words is "sixteen billion, six million, two hundred forty-five thousand, four hundred thirty-one".