1616736345 has 64 divisors (see below), whose sum is σ = 3006721536. Its totient is φ = 726589440.

The previous prime is 1616736337. The next prime is 1616736347. The reversal of 1616736345 is 5436376161.

It is not a de Polignac number, because 1616736345 - 2³ = 1616736337 is a prime.

It is a super-2 number, since 2×1616736345² = 5227672818487918050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1616736297 and 1616736306.

It is not an unprimeable number, because it can be changed into a prime (1616736347) 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, 1843047 + ... + 1843923.

It is an arithmetic number, because the mean of its divisors is an integer number (46980024).

Almost surely, 2^1616736345 is an apocalyptic number.

1616736345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1616736345 is a deficient number, since it is larger than the sum of its proper divisors (1389985191).

1616736345 is a wasteful number, since it uses less digits than its factorization.

1616736345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170.

The product of its digits is 272160, while the sum is 42.

The square root of 1616736345 is about 40208.6600746655. The cubic root of 1616736345 is about 1173.6710721650.

The spelling of 1616736345 in words is "one billion, six hundred sixteen million, seven hundred thirty-six thousand, three hundred forty-five".