1155402020767 has 8 divisors (see below), whose sum is σ = 1223391330000. Its totient is φ = 1087415432064.

The previous prime is 1155402020743. The next prime is 1155402020807. The reversal of 1155402020767 is 7670202045511.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1155402020767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155402020167) 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, 228984 + ... + 1537282.

It is an arithmetic number, because the mean of its divisors is an integer number (152923916250).

Almost surely, 2^{1155402020767} is an apocalyptic number.

1155402020767 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1155402020767 is a deficient number, since it is larger than the sum of its proper divisors (67989309233).

1155402020767 is a wasteful number, since it uses less digits than its factorization.

1155402020767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360265.

The product of its (nonzero) digits is 117600, while the sum is 40.

The spelling of 1155402020767 in words is "one trillion, one hundred fifty-five billion, four hundred two million, twenty thousand, seven hundred sixty-seven".