1610998964 has 12 divisors (see below), whose sum is σ = 2844198084. Its totient is φ = 798370944.

The previous prime is 1610998957. The next prime is 1610998969. The reversal of 1610998964 is 4698990161.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 367872400 + 1243126564 = 19180^2 + 35258^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1610998969) 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, 1781627 + ... + 1782530.

It is an arithmetic number, because the mean of its divisors is an integer number (237016507).

Almost surely, 2^1610998964 is an apocalyptic number.

It is an amenable number.

1610998964 is a deficient number, since it is larger than the sum of its proper divisors (1233199120).

1610998964 is a wasteful number, since it uses less digits than its factorization.

1610998964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3564274 (or 3564272 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 53.

The square root of 1610998964 is about 40137.2515750643. The cubic root of 1610998964 is about 1172.2810744747.

The spelling of 1610998964 in words is "one billion, six hundred ten million, nine hundred ninety-eight thousand, nine hundred sixty-four".