1920456151455 has 8 divisors (see below), whose sum is σ = 3072729842352. Its totient is φ = 1024243280768.

The previous prime is 1920456151421. The next prime is 1920456151463. The reversal of 1920456151455 is 5541516540291.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1920456151455 - 2¹⁴ = 1920456135071 is a prime.

It is a super-2 number, since 2×1920456151455² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64015205034 + ... + 64015205063.

It is an arithmetic number, because the mean of its divisors is an integer number (384091230294).

Almost surely, 2^{1920456151455} is an apocalyptic number.

1920456151455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1920456151455 is a deficient number, since it is larger than the sum of its proper divisors (1152273690897).

1920456151455 is a wasteful number, since it uses less digits than its factorization.

1920456151455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128030410105.

The product of its (nonzero) digits is 1080000, while the sum is 48.

The spelling of 1920456151455 in words is "one trillion, nine hundred twenty billion, four hundred fifty-six million, one hundred fifty-one thousand, four hundred fifty-five".