2151511260445 has 16 divisors (see below), whose sum is σ = 2683539169920. Its totient is φ = 1654512848064.

The previous prime is 2151511260337. The next prime is 2151511260449. The reversal of 2151511260445 is 5440621151512.

It is a cyclic number.

It is not a de Polignac number, because 2151511260445 - 2²⁹ = 2150974389533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151511260449) 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, 70043625 + ... + 70074334.

It is an arithmetic number, because the mean of its divisors is an integer number (167721198120).

Almost surely, 2^{2151511260445} is an apocalyptic number.

It is an amenable number.

2151511260445 is a deficient number, since it is larger than the sum of its proper divisors (532027909475).

2151511260445 is a wasteful number, since it uses less digits than its factorization.

2151511260445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140118084.

The product of its (nonzero) digits is 48000, while the sum is 37.

The spelling of 2151511260445 in words is "two trillion, one hundred fifty-one billion, five hundred eleven million, two hundred sixty thousand, four hundred forty-five".