72265641201736 has 8 divisors (see below), whose sum is σ = 135498077253270. Its totient is φ = 36132820600864.

The previous prime is 72265641201703. The next prime is 72265641201769. The reversal of 72265641201736 is 63710214656227.

It is an interprime number because it is at equal distance from previous prime (72265641201703) and next prime (72265641201769).

It can be written as a sum of positive squares in only one way, i.e., 45449089660836 + 26816551540900 = 6741594^2 + 5178470^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4516602575101 + ... + 4516602575116.

Almost surely, 2^{72265641201736} is an apocalyptic number.

It is an amenable number.

72265641201736 is a deficient number, since it is larger than the sum of its proper divisors (63232436051534).

72265641201736 is a wasteful number, since it uses less digits than its factorization.

72265641201736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9033205150223 (or 9033205150219 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 52.

The spelling of 72265641201736 in words is "seventy-two trillion, two hundred sixty-five billion, six hundred forty-one million, two hundred one thousand, seven hundred thirty-six".