140021656030 has 32 divisors (see below), whose sum is σ = 254581081920. Its totient is φ = 55443955200.

The previous prime is 140021656009. The next prime is 140021656031. The reversal of 140021656030 is 30656120041.

It is a self number, because there is not a number n which added to its sum of digits gives 140021656030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140021656031) 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, 7997526 + ... + 8015014.

It is an arithmetic number, because the mean of its divisors is an integer number (7955658810).

Almost surely, 2^140021656030 is an apocalyptic number.

140021656030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140021656030 is a deficient number, since it is larger than the sum of its proper divisors (114559425890).

140021656030 is a wasteful number, since it uses less digits than its factorization.

140021656030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25524.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 140021656030 its reverse (30656120041), we get a palindrome (170677776071).

The spelling of 140021656030 in words is "one hundred forty billion, twenty-one million, six hundred fifty-six thousand, thirty".