61506120000603 has 16 divisors (see below), whose sum is σ = 90607481127936. Its totient is φ = 36914158976640.

The previous prime is 61506120000599. The next prime is 61506120000631. The reversal of 61506120000603 is 30600002160516.

It is not a de Polignac number, because 61506120000603 - 2² = 61506120000599 is a prime.

It is a super-4 number, since 4×61506120000603⁴ (a number of 56 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (61506120007603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26217441283 + ... + 26217443628.

It is an arithmetic number, because the mean of its divisors is an integer number (5662967570496).

Almost surely, 2^{61506120000603} is an apocalyptic number.

61506120000603 is a deficient number, since it is larger than the sum of its proper divisors (29101361127333).

61506120000603 is a wasteful number, since it uses less digits than its factorization.

61506120000603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52434884954.

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 61506120000603 in words is "sixty-one trillion, five hundred six billion, one hundred twenty million, six hundred three", and thus it is an aban number.