1611061015157 has 4 divisors (see below), whose sum is σ = 1757521107456. Its totient is φ = 1464600922860.

The previous prime is 1611061015129. The next prime is 1611061015169. The reversal of 1611061015157 is 7515101601161.

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 1611061015157 - 2¹⁴ = 1611060998773 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 (1611031015157) 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, 73230046133 + ... + 73230046154.

It is an arithmetic number, because the mean of its divisors is an integer number (439380276864).

Almost surely, 2^{1611061015157} is an apocalyptic number.

It is an amenable number.

1611061015157 is a deficient number, since it is larger than the sum of its proper divisors (146460092299).

1611061015157 is a wasteful number, since it uses less digits than its factorization.

1611061015157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146460092298.

The product of its (nonzero) digits is 6300, while the sum is 35.

The spelling of 1611061015157 in words is "one trillion, six hundred eleven billion, sixty-one million, fifteen thousand, one hundred fifty-seven".