65377453040 has 40 divisors (see below), whose sum is σ = 152790192528. Its totient is φ = 26015477760.

The previous prime is 65377453019. The next prime is 65377453079. The reversal of 65377453040 is 4035477356.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×65377453040² (a number of 22 digits) contains 22 as substring.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 65377452982 and 65377453000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2101706 + ... + 2132585.

Almost surely, 2^65377453040 is an apocalyptic number.

It is an amenable number.

65377453040 is an abundant number, since it is smaller than the sum of its proper divisors (87412739488).

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

65377453040 is a wasteful number, since it uses less digits than its factorization.

65377453040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4234497 (or 4234491 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 44.

The spelling of 65377453040 in words is "sixty-five billion, three hundred seventy-seven million, four hundred fifty-three thousand, forty".