1373063616 has 224 divisors, whose sum is σ = 4377415680. Its totient is φ = 420360192.

The previous prime is 1373063611. The next prime is 1373063617. The reversal of 1373063616 is 6163603731.

1373063616 is a `hidden beast` number, since 1 + 3 + 7 + 3 + 0 + 636 + 16 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373063611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1262625 + ... + 1263711.

Almost surely, 2^1373063616 is an apocalyptic number.

1373063616 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 1373063616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2188707840).

1373063616 is an abundant number, since it is smaller than the sum of its proper divisors (3004352064).

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

1373063616 is a wasteful number, since it uses less digits than its factorization.

1373063616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168 (or 1152 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 36.

The square root of 1373063616 is about 37054.8730398581. The cubic root of 1373063616 is about 1111.4678025426.

The spelling of 1373063616 in words is "one billion, three hundred seventy-three million, sixty-three thousand, six hundred sixteen".