3656165542 has 4 divisors (see below), whose sum is σ = 5484248316. Its totient is φ = 1828082770.

The previous prime is 3656165533. The next prime is 3656165551. The reversal of 3656165542 is 2455616563.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2455616563 = 19 ⋅129242977.

It is an interprime number because it is at equal distance from previous prime (3656165533) and next prime (3656165551).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 914041384 + ... + 914041387.

It is an arithmetic number, because the mean of its divisors is an integer number (1371062079).

Almost surely, 2^3656165542 is an apocalyptic number.

3656165542 is a deficient number, since it is larger than the sum of its proper divisors (1828082774).

3656165542 is a wasteful number, since it uses less digits than its factorization.

3656165542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828082773.

The product of its digits is 648000, while the sum is 43.

The square root of 3656165542 is about 60466.2347264984. The cubic root of 3656165542 is about 1540.5481747268.

The spelling of 3656165542 in words is "three billion, six hundred fifty-six million, one hundred sixty-five thousand, five hundred forty-two".