1351601616 has 40 divisors (see below), whose sum is σ = 3501685600. Its totient is φ = 449237376.

The previous prime is 1351601597. The next prime is 1351601639. The reversal of 1351601616 is 6161061531.

It is a super-2 number, since 2×1351601616² = 3653653856747622912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23590 + ... + 57093.

It is an arithmetic number, because the mean of its divisors is an integer number (87542140).

Almost surely, 2^1351601616 is an apocalyptic number.

1351601616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1351601616 is an abundant number, since it is smaller than the sum of its proper divisors (2150083984).

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

1351601616 is a wasteful number, since it uses less digits than its factorization.

1351601616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81043 (or 81037 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1351601616 is about 36764.1349143428. The cubic root of 1351601616 is about 1105.6463438107.

The spelling of 1351601616 in words is "one billion, three hundred fifty-one million, six hundred one thousand, six hundred sixteen".