2621170126020 has 48 divisors (see below), whose sum is σ = 7339698894528. Its totient is φ = 698938458240.

The previous prime is 2621170125979. The next prime is 2621170126031. The reversal of 2621170126020 is 206210711262.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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, 199359 + ... + 2298278.

It is an arithmetic number, because the mean of its divisors is an integer number (152910393636).

Almost surely, 2^{2621170126020} is an apocalyptic number.

2621170126020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2621170126020 is an abundant number, since it is smaller than the sum of its proper divisors (4718528768508).

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

2621170126020 is a wasteful number, since it uses less digits than its factorization.

2621170126020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515140 (or 2515138 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

Adding to 2621170126020 its reverse (206210711262), we get a palindrome (2827380837282).

The spelling of 2621170126020 in words is "two trillion, six hundred twenty-one billion, one hundred seventy million, one hundred twenty-six thousand, twenty".