2151535155443 has 4 divisors (see below), whose sum is σ = 2220939515328. Its totient is φ = 2082130795560.

The previous prime is 2151535155439. The next prime is 2151535155461. The reversal of 2151535155443 is 3445515351512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2151535155443 - 2² = 2151535155439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2151535155394 and 2151535155403.

It is not an unprimeable number, because it can be changed into a prime (2151535155403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34702179896 + ... + 34702179957.

It is an arithmetic number, because the mean of its divisors is an integer number (555234878832).

Almost surely, 2^{2151535155443} is an apocalyptic number.

2151535155443 is a deficient number, since it is larger than the sum of its proper divisors (69404359885).

2151535155443 is an equidigital number, since it uses as much as digits as its factorization.

2151535155443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69404359884.

The product of its digits is 900000, while the sum is 44.

The spelling of 2151535155443 in words is "two trillion, one hundred fifty-one billion, five hundred thirty-five million, one hundred fifty-five thousand, four hundred forty-three".