2720153323251 has 48 divisors (see below), whose sum is σ = 4864785429504. Its totient is φ = 1426214423232.

The previous prime is 2720153323249. The next prime is 2720153323259. The reversal of 2720153323251 is 1523233510272.

2720153323251 is a `hidden beast` number, since 2 + 72 + 0 + 1 + 5 + 332 + 3 + 251 = 666.

It is not a de Polignac number, because 2720153323251 - 2¹ = 2720153323249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2720153323259) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9807271 + ... + 10080816.

It is an arithmetic number, because the mean of its divisors is an integer number (101349696448).

Almost surely, 2^{2720153323251} is an apocalyptic number.

2720153323251 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2720153323251 is a deficient number, since it is larger than the sum of its proper divisors (2144632106253).

2720153323251 is a wasteful number, since it uses less digits than its factorization.

2720153323251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19888280 (or 19888277 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The spelling of 2720153323251 in words is "two trillion, seven hundred twenty billion, one hundred fifty-three million, three hundred twenty-three thousand, two hundred fifty-one".