161477555043 has 24 divisors (see below), whose sum is σ = 250769412432. Its totient is φ = 92157046464.

The previous prime is 161477555023. The next prime is 161477555069. The reversal of 161477555043 is 340555774161.

It is not a de Polignac number, because 161477555043 - 2¹² = 161477550947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161477554983 and 161477555001.

It is not an unprimeable number, because it can be changed into a prime (161477555023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 571980 + ... + 806297.

It is an arithmetic number, because the mean of its divisors is an integer number (10448725518).

Almost surely, 2^161477555043 is an apocalyptic number.

161477555043 is a deficient number, since it is larger than the sum of its proper divisors (89291857389).

161477555043 is a wasteful number, since it uses less digits than its factorization.

161477555043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379091 (or 1379084 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 48.

The spelling of 161477555043 in words is "one hundred sixty-one billion, four hundred seventy-seven million, five hundred fifty-five thousand, forty-three".