111406661037 has 40 divisors (see below), whose sum is σ = 191648922432. Its totient is φ = 63174945600.

The previous prime is 111406660993. The next prime is 111406661053. The reversal of 111406661037 is 730166604111.

It is not a de Polignac number, because 111406661037 - 2⁶ = 111406660973 is a prime.

It is a super-3 number, since 3×111406661037³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 111406660992 and 111406661010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111406661137) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 675664 + ... + 824217.

Almost surely, 2^111406661037 is an apocalyptic number.

It is an amenable number.

111406661037 is a deficient number, since it is larger than the sum of its proper divisors (80242261395).

111406661037 is a wasteful number, since it uses less digits than its factorization.

111406661037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500031 (or 1500022 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 111406661037 in words is "one hundred eleven billion, four hundred six million, six hundred sixty-one thousand, thirty-seven".