65725507157 has 8 divisors (see below), whose sum is σ = 65983082880. Its totient is φ = 65468430720.

The previous prime is 65725507153. The next prime is 65725507163. The reversal of 65725507157 is 75170552756.

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 65725507157 - 2² = 65725507153 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 (65725507153) 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, 140069 + ... + 388677.

It is an arithmetic number, because the mean of its divisors is an integer number (8247885360).

Almost surely, 2^65725507157 is an apocalyptic number.

It is an amenable number.

65725507157 is a deficient number, since it is larger than the sum of its proper divisors (257575723).

65725507157 is a wasteful number, since it uses less digits than its factorization.

65725507157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249643.

The product of its (nonzero) digits is 2572500, while the sum is 50.

The spelling of 65725507157 in words is "sixty-five billion, seven hundred twenty-five million, five hundred seven thousand, one hundred fifty-seven".