65635343157 has 4 divisors (see below), whose sum is σ = 87513790880. Its totient is φ = 43756895436.

The previous prime is 65635343119. The next prime is 65635343203. The reversal of 65635343157 is 75134353656.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 65635343157 - 2⁶ = 65635343093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65635343057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10939223857 + ... + 10939223862.

It is an arithmetic number, because the mean of its divisors is an integer number (21878447720).

Almost surely, 2^65635343157 is an apocalyptic number.

It is an amenable number.

65635343157 is a deficient number, since it is larger than the sum of its proper divisors (21878447723).

65635343157 is a wasteful number, since it uses less digits than its factorization.

65635343157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21878447722.

The product of its digits is 3402000, while the sum is 48.

The spelling of 65635343157 in words is "sixty-five billion, six hundred thirty-five million, three hundred forty-three thousand, one hundred fifty-seven".