1155740444651 has 8 divisors (see below), whose sum is σ = 1249041593520. Its totient is φ = 1063067586912.

The previous prime is 1155740444633. The next prime is 1155740444657. The reversal of 1155740444651 is 1564440475511.

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 1155740444651 - 2¹⁸ = 1155740182507 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1155740444596 and 1155740444605.

It is not an unprimeable number, because it can be changed into a prime (1155740444657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157068956 + ... + 157076313.

It is an arithmetic number, because the mean of its divisors is an integer number (156130199190).

Almost surely, 2^{1155740444651} is an apocalyptic number.

1155740444651 is a deficient number, since it is larger than the sum of its proper divisors (93301148869).

1155740444651 is a wasteful number, since it uses less digits than its factorization.

1155740444651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314145565.

The product of its (nonzero) digits is 1344000, while the sum is 47.

The spelling of 1155740444651 in words is "one trillion, one hundred fifty-five billion, seven hundred forty million, four hundred forty-four thousand, six hundred fifty-one".