69140466540 has 48 divisors (see below), whose sum is σ = 215103675360. Its totient is φ = 18437457600.

The previous prime is 69140466533. The next prime is 69140466547. The reversal of 69140466540 is 4566404196.

It is a happy number.

69140466540 is a `hidden beast` number, since 6 + 9 + 1 + 40 + 4 + 66 + 540 = 666.

It is an interprime number because it is at equal distance from previous prime (69140466533) and next prime (69140466547).

It is a super-2 number, since 2×69140466540² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (69140466547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64018411 + ... + 64019490.

It is an arithmetic number, because the mean of its divisors is an integer number (4481326570).

Almost surely, 2^69140466540 is an apocalyptic number.

69140466540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

69140466540 is an abundant number, since it is smaller than the sum of its proper divisors (145963208820).

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

69140466540 is a wasteful number, since it uses less digits than its factorization.

69140466540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128037919 (or 128037911 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 69140466540 in words is "sixty-nine billion, one hundred forty million, four hundred sixty-six thousand, five hundred forty".