61515232555151 has 8 divisors (see below), whose sum is σ = 61977424973184. Its totient is φ = 61053231095680.

The previous prime is 61515232555103. The next prime is 61515232555157. The reversal of 61515232555151 is 15155523251516.

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-61515232555151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61515232555096 and 61515232555105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61515232555157) 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, 47092910 + ... + 48381531.

It is an arithmetic number, because the mean of its divisors is an integer number (7747178121648).

Almost surely, 2^{61515232555151} is an apocalyptic number.

61515232555151 is a deficient number, since it is larger than the sum of its proper divisors (462192418033).

61515232555151 is a wasteful number, since it uses less digits than its factorization.

61515232555151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95479281.

The product of its digits is 1125000, while the sum is 47.

The spelling of 61515232555151 in words is "sixty-one trillion, five hundred fifteen billion, two hundred thirty-two million, five hundred fifty-five thousand, one hundred fifty-one".