155116651061 has 8 divisors (see below), whose sum is σ = 155309566104. Its totient is φ = 154923842560.

The previous prime is 155116651049. The next prime is 155116651091. The reversal of 155116651061 is 160156611551.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 80297990161 + 74818660900 = 283369^2 + 273530^2 .

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 155116651061 - 2³⁴ = 137936781877 is a prime.

It is a super-2 number, since 2×155116651061² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155116651021) 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, 3113201 + ... + 3162633.

It is an arithmetic number, because the mean of its divisors is an integer number (19413695763).

Almost surely, 2^155116651061 is an apocalyptic number.

It is an amenable number.

155116651061 is a deficient number, since it is larger than the sum of its proper divisors (192915043).

155116651061 is a wasteful number, since it uses less digits than its factorization.

155116651061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53271.

The product of its (nonzero) digits is 27000, while the sum is 38.

The spelling of 155116651061 in words is "one hundred fifty-five billion, one hundred sixteen million, six hundred fifty-one thousand, sixty-one".