1101640465 has 8 divisors (see below), whose sum is σ = 1341699840. Its totient is φ = 868158192.

The previous prime is 1101640451. The next prime is 1101640471. The reversal of 1101640465 is 5640461011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101640465 is a prime.

It is a super-2 number, since 2×1101640465² = 2427223428250832450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1643905 + ... + 1644574.

It is an arithmetic number, because the mean of its divisors is an integer number (167712480).

Almost surely, 2^1101640465 is an apocalyptic number.

It is an amenable number.

1101640465 is a deficient number, since it is larger than the sum of its proper divisors (240059375).

1101640465 is an equidigital number, since it uses as much as digits as its factorization.

1101640465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3288551.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1101640465 is about 33190.9696303076. The cubic root of 1101640465 is about 1032.7930179653.

The spelling of 1101640465 in words is "one billion, one hundred one million, six hundred forty thousand, four hundred sixty-five".