641161027 has 8 divisors (see below), whose sum is σ = 700207200. Its totient is φ = 583504320.

The previous prime is 641161019. The next prime is 641161033. The reversal of 641161027 is 720161146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 641161027 - 2³ = 641161019 is a prime.

It is a super-2 number, since 2×641161027² = 822174925087389458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 641160986 and 641161004.

It is not an unprimeable number, because it can be changed into a prime (641161067) 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, 346402 + ... + 348247.

It is an arithmetic number, because the mean of its divisors is an integer number (87525900).

Almost surely, 2^641161027 is an apocalyptic number.

641161027 is a deficient number, since it is larger than the sum of its proper divisors (59046173).

641161027 is a wasteful number, since it uses less digits than its factorization.

641161027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694733.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 641161027 is about 25321.1576947027. The cubic root of 641161027 is about 862.2946772196.

The spelling of 641161027 in words is "six hundred forty-one million, one hundred sixty-one thousand, twenty-seven".