1156210162001 has 4 divisors (see below), whose sum is σ = 1165036193904. Its totient is φ = 1147384130100.

The previous prime is 1156210161949. The next prime is 1156210162039. The reversal of 1156210162001 is 1002610126511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1156210162001 - 2¹⁸ = 1156209899857 is a prime.

It is a super-3 number, since 3×1156210162001³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1156210162201) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4413015755 + ... + 4413016016.

It is an arithmetic number, because the mean of its divisors is an integer number (291259048476).

Almost surely, 2^{1156210162001} is an apocalyptic number.

It is an amenable number.

1156210162001 is a deficient number, since it is larger than the sum of its proper divisors (8826031903).

1156210162001 is an equidigital number, since it uses as much as digits as its factorization.

1156210162001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8826031902.

The product of its (nonzero) digits is 720, while the sum is 26.

Adding to 1156210162001 its reverse (1002610126511), we get a palindrome (2158820288512).

The spelling of 1156210162001 in words is "one trillion, one hundred fifty-six billion, two hundred ten million, one hundred sixty-two thousand, one".