1641541164 has 24 divisors (see below), whose sum is σ = 3834333888. Its totient is φ = 546598800.

The previous prime is 1641541163. The next prime is 1641541241. The reversal of 1641541164 is 4611451461.

It is not an unprimeable number, because it can be changed into a prime (1641541163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60862 + ... + 83589.

It is an arithmetic number, because the mean of its divisors is an integer number (159763912).

Almost surely, 2^1641541164 is an apocalyptic number.

It is an amenable number.

1641541164 is an abundant number, since it is smaller than the sum of its proper divisors (2192792724).

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

1641541164 is a wasteful number, since it uses less digits than its factorization.

1641541164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145405 (or 145403 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 1641541164 is about 40515.9371605792. The cubic root of 1641541164 is about 1179.6429935985.

The spelling of 1641541164 in words is "one billion, six hundred forty-one million, five hundred forty-one thousand, one hundred sixty-four".