1663061151 has 8 divisors (see below), whose sum is σ = 2217611520. Its totient is φ = 1108609112.

The previous prime is 1663061137. The next prime is 1663061171. The reversal of 1663061151 is 1511603661.

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 1663061151 - 2²⁵ = 1629506719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663061111) 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, 36736 + ... + 68378.

It is an arithmetic number, because the mean of its divisors is an integer number (277201440).

Almost surely, 2^1663061151 is an apocalyptic number.

1663061151 is a deficient number, since it is larger than the sum of its proper divisors (554550369).

1663061151 is a wasteful number, since it uses less digits than its factorization.

1663061151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49165.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1663061151 is about 40780.6467702512. The cubic root of 1663061151 is about 1184.7755219364.

The spelling of 1663061151 in words is "one billion, six hundred sixty-three million, sixty-one thousand, one hundred fifty-one".