64030525243440 has 80 divisors (see below), whose sum is σ = 226851003725568. Its totient is φ = 14635548626688.

The previous prime is 64030525243439. The next prime is 64030525243457. The reversal of 64030525243440 is 4434252503046.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 64030525243392 and 64030525243401.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19056702262 + ... + 19056705621.

Almost surely, 2^{64030525243440} is an apocalyptic number.

64030525243440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64030525243440 is an abundant number, since it is smaller than the sum of its proper divisors (162820478482128).

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

64030525243440 is a wasteful number, since it uses less digits than its factorization.

64030525243440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38113407906 (or 38113407900 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 42.

Adding to 64030525243440 its reverse (4434252503046), we get a palindrome (68464777746486).

The spelling of 64030525243440 in words is "sixty-four trillion, thirty billion, five hundred twenty-five million, two hundred forty-three thousand, four hundred forty".