6416625601 has 4 divisors (see below), whose sum is σ = 6417316692. Its totient is φ = 6415934512.

The previous prime is 6416625599. The next prime is 6416625617. The reversal of 6416625601 is 1065266146.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6056574976 + 360050625 = 77824^2 + 18975^2 .

It is a cyclic number.

It is not a de Polignac number, because 6416625601 - 2¹ = 6416625599 is a prime.

It is a super-2 number, since 2×6416625601² = 82346168206817222402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6416625671) 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, 331426 + ... + 350251.

It is an arithmetic number, because the mean of its divisors is an integer number (1604329173).

Almost surely, 2^6416625601 is an apocalyptic number.

It is an amenable number.

6416625601 is a deficient number, since it is larger than the sum of its proper divisors (691091).

6416625601 is an equidigital number, since it uses as much as digits as its factorization.

6416625601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691090.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 6416625601 is about 80103.8426107013. The cubic root of 6416625601 is about 1858.2418350726.

The spelling of 6416625601 in words is "six billion, four hundred sixteen million, six hundred twenty-five thousand, six hundred one".