66362751240 has 32 divisors (see below), whose sum is σ = 199088254080. Its totient is φ = 17696733632.

The previous prime is 66362751149. The next prime is 66362751263. The reversal of 66362751240 is 4215726366.

66362751240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 66362751192 and 66362751201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276511344 + ... + 276511583.

It is an arithmetic number, because the mean of its divisors is an integer number (6221507940).

Almost surely, 2^66362751240 is an apocalyptic number.

66362751240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66362751240 is an abundant number, since it is smaller than the sum of its proper divisors (132725502840).

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

66362751240 is a wasteful number, since it uses less digits than its factorization.

66362751240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553022941 (or 553022937 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 66362751240 in words is "sixty-six billion, three hundred sixty-two million, seven hundred fifty-one thousand, two hundred forty".