65402553061 has 16 divisors (see below), whose sum is σ = 68916714048. Its totient is φ = 62004988800.

The previous prime is 65402553059. The next prime is 65402553089. The reversal of 65402553061 is 16035520456.

It is not a de Polignac number, because 65402553061 - 2¹ = 65402553059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65402553061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65402553031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50050 + ... + 365116.

It is an arithmetic number, because the mean of its divisors is an integer number (4307294628).

Almost surely, 2^65402553061 is an apocalyptic number.

65402553061 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

65402553061 is a deficient number, since it is larger than the sum of its proper divisors (3514160987).

65402553061 is a wasteful number, since it uses less digits than its factorization.

65402553061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315252.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 65402553061 in words is "sixty-five billion, four hundred two million, five hundred fifty-three thousand, sixty-one".