1371696816 has 320 divisors, whose sum is σ = 4581992448. Its totient is φ = 344408064.

The previous prime is 1371696749. The next prime is 1371696817. The reversal of 1371696816 is 6186961731.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1371696817) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6962830 + ... + 6963026.

Almost surely, 2^1371696816 is an apocalyptic number.

1371696816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1371696816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2290996224).

1371696816 is an abundant number, since it is smaller than the sum of its proper divisors (3210295632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1371696816 is a wasteful number, since it uses less digits than its factorization.

1371696816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 302 counting only the distinct ones).

The product of its digits is 326592, while the sum is 48.

The square root of 1371696816 is about 37036.4255294703. The cubic root of 1371696816 is about 1111.0988809261.

It can be divided in two parts, 1371696 and 816, that multiplied together give a square (1119303936 = 33456²).

The spelling of 1371696816 in words is "one billion, three hundred seventy-one million, six hundred ninety-six thousand, eight hundred sixteen".