1610696641 has 4 divisors (see below), whose sum is σ = 1610847172. Its totient is φ = 1610546112.

The previous prime is 1610696629. The next prime is 1610696657. The reversal of 1610696641 is 1466960161.

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 1541740225 + 68956416 = 39265^2 + 8304^2 .

It is a cyclic number.

It is not a de Polignac number, because 1610696641 - 2⁵ = 1610696609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1610696594 and 1610696603.

It is not an unprimeable number, because it can be changed into a prime (1610696041) 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, 57876 + ... + 81061.

It is an arithmetic number, because the mean of its divisors is an integer number (402711793).

Almost surely, 2^1610696641 is an apocalyptic number.

It is an amenable number.

1610696641 is a deficient number, since it is larger than the sum of its proper divisors (150531).

1610696641 is a wasteful number, since it uses less digits than its factorization.

1610696641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150530.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 1610696641 is about 40133.4852834886. The cubic root of 1610696641 is about 1172.2077390865.

The spelling of 1610696641 in words is "one billion, six hundred ten million, six hundred ninety-six thousand, six hundred forty-one".