88221316437 has 12 divisors (see below), whose sum is σ = 127445171724. Its totient is φ = 58807573440.

The previous prime is 88221316409. The next prime is 88221316459. The reversal of 88221316437 is 73461312288.

88221316437 is a `hidden beast` number, since 8 + 82 + 2 + 131 + 6 + 437 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 54289466001 + 33931850436 = 233001^2 + 184206^2 .

It is not a de Polignac number, because 88221316437 - 2¹⁵ = 88221283669 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 88221316392 and 88221316401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88221116437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 468264 + ... + 629057.

It is an arithmetic number, because the mean of its divisors is an integer number (10620430977).

Almost surely, 2^88221316437 is an apocalyptic number.

It is an amenable number.

88221316437 is a deficient number, since it is larger than the sum of its proper divisors (39223855287).

88221316437 is a wasteful number, since it uses less digits than its factorization.

88221316437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106260 (or 1106257 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The spelling of 88221316437 in words is "eighty-eight billion, two hundred twenty-one million, three hundred sixteen thousand, four hundred thirty-seven".