61551535364254 has 32 divisors (see below), whose sum is σ = 101115661177440. Its totient is φ = 27926622623232.

The previous prime is 61551535364243. The next prime is 61551535364261. The reversal of 61551535364254 is 45246353515516.

It is a junction number, because it is equal to n+sod(n) for n = 61551535364195 and 61551535364204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280392922 + ... + 280612354.

It is an arithmetic number, because the mean of its divisors is an integer number (3159864411795).

Almost surely, 2^{61551535364254} is an apocalyptic number.

61551535364254 is a deficient number, since it is larger than the sum of its proper divisors (39564125813186).

61551535364254 is a wasteful number, since it uses less digits than its factorization.

61551535364254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402364.

The product of its digits is 32400000, while the sum is 55.

The spelling of 61551535364254 in words is "sixty-one trillion, five hundred fifty-one billion, five hundred thirty-five million, three hundred sixty-four thousand, two hundred fifty-four".