16245536506 has 8 divisors (see below), whose sum is σ = 25208591220. Its totient is φ = 7842672768.

The previous prime is 16245536491. The next prime is 16245536509. The reversal of 16245536506 is 60563554261.

It can be written as a sum of positive squares in 2 ways, for example, as 14960959225 + 1284577281 = 122315^2 + 35841^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (16245536509) 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, 140047671 + ... + 140047786.

Almost surely, 2^16245536506 is an apocalyptic number.

16245536506 is a deficient number, since it is larger than the sum of its proper divisors (8963054714).

16245536506 is a wasteful number, since it uses less digits than its factorization.

16245536506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280095488.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 16245536506 in words is "sixteen billion, two hundred forty-five million, five hundred thirty-six thousand, five hundred six".