31550413420016 has 20 divisors (see below), whose sum is σ = 61448972740224. Its totient is φ = 15692614003200.

The previous prime is 31550413420013. The next prime is 31550413420049. The reversal of 31550413420016 is 61002431405513.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31550413420013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5162041025 + ... + 5162047136.

Almost surely, 2^{31550413420016} is an apocalyptic number.

It is an amenable number.

31550413420016 is a deficient number, since it is larger than the sum of its proper divisors (29898559320208).

31550413420016 is a wasteful number, since it uses less digits than its factorization.

31550413420016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10324088360 (or 10324088354 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 31550413420016 its reverse (61002431405513), we get a palindrome (92552844825529).

The spelling of 31550413420016 in words is "thirty-one trillion, five hundred fifty billion, four hundred thirteen million, four hundred twenty thousand, sixteen".