61164462637254 has 32 divisors (see below), whose sum is σ = 128769410165760. Its totient is φ = 19314775404000.

The previous prime is 61164462637253. The next prime is 61164462637277. The reversal of 61164462637254 is 45273626446116.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 61164462637194 and 61164462637203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61164462637253) 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, 2584284 + ... + 11358144.

It is an arithmetic number, because the mean of its divisors is an integer number (4024044067680).

Almost surely, 2^{61164462637254} is an apocalyptic number.

61164462637254 is an abundant number, since it is smaller than the sum of its proper divisors (67604947528506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61164462637254 is a wasteful number, since it uses less digits than its factorization.

61164462637254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8835036.

The product of its digits is 34836480, while the sum is 57.

The spelling of 61164462637254 in words is "sixty-one trillion, one hundred sixty-four billion, four hundred sixty-two million, six hundred thirty-seven thousand, two hundred fifty-four".