65770705950 has 48 divisors (see below), whose sum is σ = 163130439936. Its totient is φ = 17536802400.

The previous prime is 65770705879. The next prime is 65770705951. The reversal of 65770705950 is 5950707756.

65770705950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×65770705950² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65770705893 and 65770705902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65770705951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1604409 + ... + 1644891.

It is an arithmetic number, because the mean of its divisors is an integer number (3398550832).

Almost surely, 2^65770705950 is an apocalyptic number.

65770705950 is an abundant number, since it is smaller than the sum of its proper divisors (97359733986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65770705950 is a wasteful number, since it uses less digits than its factorization.

65770705950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51329 (or 51324 counting only the distinct ones).

The product of its (nonzero) digits is 2315250, while the sum is 51.

The spelling of 65770705950 in words is "sixty-five billion, seven hundred seventy million, seven hundred five thousand, nine hundred fifty".