73311266552 has 32 divisors (see below), whose sum is σ = 140863907520. Its totient is φ = 35748226560.

The previous prime is 73311266551. The next prime is 73311266563. The reversal of 73311266552 is 25566211337.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73311266551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 867188 + ... + 947964.

It is an arithmetic number, because the mean of its divisors is an integer number (4401997110).

Almost surely, 2^73311266552 is an apocalyptic number.

It is an amenable number.

73311266552 is a deficient number, since it is larger than the sum of its proper divisors (67552640968).

73311266552 is a wasteful number, since it uses less digits than its factorization.

73311266552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83591 (or 83587 counting only the distinct ones).

The product of its digits is 226800, while the sum is 41.

Adding to 73311266552 its reverse (25566211337), we get a palindrome (98877477889).

The spelling of 73311266552 in words is "seventy-three billion, three hundred eleven million, two hundred sixty-six thousand, five hundred fifty-two".