72503561881006 has 16 divisors (see below), whose sum is σ = 110272210249824. Its totient is φ = 35746402322304.

The previous prime is 72503561880991. The next prime is 72503561881019. The reversal of 72503561881006 is 60018816530527.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60367746 + ... + 61557061.

It is an arithmetic number, because the mean of its divisors is an integer number (6892013140614).

Almost surely, 2^{72503561881006} is an apocalyptic number.

72503561881006 is a deficient number, since it is larger than the sum of its proper divisors (37768648368818).

72503561881006 is a wasteful number, since it uses less digits than its factorization.

72503561881006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121928955.

The product of its (nonzero) digits is 2419200, while the sum is 52.

The spelling of 72503561881006 in words is "seventy-two trillion, five hundred three billion, five hundred sixty-one million, eight hundred eighty-one thousand, six".