61200200154145 has 32 divisors (see below), whose sum is σ = 79558537605120. Its totient is φ = 44926293634560.

The previous prime is 61200200154109. The next prime is 61200200154151. The reversal of 61200200154145 is 54145100200216.

It is a happy number.

It is not a de Polignac number, because 61200200154145 - 2⁹ = 61200200153633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16261141 + ... + 19667869.

It is an arithmetic number, because the mean of its divisors is an integer number (2486204300160).

Almost surely, 2^{61200200154145} is an apocalyptic number.

61200200154145 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61200200154145 is a deficient number, since it is larger than the sum of its proper divisors (18358337450975).

61200200154145 is a wasteful number, since it uses less digits than its factorization.

61200200154145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3408385.

The product of its (nonzero) digits is 9600, while the sum is 31.

The spelling of 61200200154145 in words is "sixty-one trillion, two hundred billion, two hundred million, one hundred fifty-four thousand, one hundred forty-five".